Home / 142,888.61-214,344.57-71,774.66

Finding the Fourth Proportional to 142,888.61, 214,344.57 and 71,774.66

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Solution

The fourth proportional to 142,888.61, 214,344.57 and 71,774.66 is: 107,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,888.61 : 214,344.57 = 71,774.66 : x
  2. Step 2: Convert to fraction form
    142,888.61/214,344.57 = 71,774.66/x
  3. Step 3: Cross multiply
    142,888.61x = 214,344.57 × 71,774.66
  4. Step 4: Simplify right side
    142,888.61x = 15,384,508,634.60
  5. Step 5: Solve for x
    x = 15,384,508,634.60/142,888.61
  6. Step 6: Final answer
    x = 107,667.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.